Glue on tab to repair when the upper tab breaks on a Brodit or ProClip 853298. This is the left hand drive one, if you need the RHD one just send me a forum message and I will create the mirror and post it.
I found that the position has to be as close to the stock tab location as posible. You have to trim the remaining little tab off of the stock holder with a knife. Once the area is flat you just glue this on so the the tab is in the stock location, again alignment is everything. Mine works better than stock as the printed plastic has a course finish and does not slide at all
The one I oprinted had a little tabextending the unit. I cut mine off and removed it from the model as it was unnecessary.